◎ 题干
I haven't seen Anna since she left our hometown two years ago, but we do keep in touch with each other
by sending emails ________.
[     ]
A.here and there  
B.sooner or later
C.at one time  
D.now and then
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“I haven't seen Anna since she left our hometown two years ago, but we do keep in touch with each other by sending emails ________.[ ]A.here and thereB.sooner o…”主要考查了你对  【副词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。